Difference between vent eruption and fissure eruption
Vent eruption involves magma coming out through one vent or pipe and pile up while fissure eruption involves magma coming out through many cracks of fissures and spread over a wide area
FORM THREE GEOGRAPHY NOTES
How an ox-bow lake is formed
The following are steps on how the ox-bow lake is formed: a river stars to meander on a flood plain lateral erosion occurs on the outer side of the bend while deposition takes place on the inner bank lateral erosion leads in the reduction of the neck of land between adjacent bends the neck of …
Effects of soil erosion on human activities
The following are effects of soil erosion to human activities Soil erosion may destroy structures for example buildings, bridges, roads as it weakens their foundation erodes alluvial deposits on the river beds making the river channel shallower resulting in frequent flooding sand eroded from steep slopes is deposited on the river beds and can be …
Distinctive features of the fiord
The following are distinctive features of the fiord It has steep walls it has a narrow constricted sea inlet it is shallower seaward and deep inland it is U shaped it has a hanging valley
4 principles of prismatic compass surveying
Prismatic compass surveying is the method of surveying in which the direction of surveying lines and angular measurements are determined with a magnetic compass and the length of surveying lines are measured with a tape or chain. The following are principles of prismatic compass surveying Make sure that there is no magnetic materials to avoid …
4 Disadvantages of using prismatic compass surveying
Prismatic compass surveying is the method of surveying in which the direction of surveying lines and angular measurements are determined with a magnetic compass and the length of surveying lines are measured with a tape or chain. The following are disadvantages/demerits of using prismatic compass surveying can not be conducted in areas known to have …
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4 process of river erosion
The following are the process involved in the river erosion: Hydraulic process – this is the eroding force of the water on rocks. This takes place when the force of the river water surges into cracks or sweeping against banks on the outside of bends with turbulence and eddying. It erodes through quarrying or scooping by …